Fig. 3: Reaching the diffraction limit through scattering media with FFM learning.
From: Fully forward mode training for optical neural networks
a, The symmetry of the light propagation with respect to the central plane of the complex medium facilitates FFM learning of focusing through scattering media. b, Focus designing with FFM learning and PSO optimization. c, FFM-designed focus evolution with different scattering media. d, The FWHM and PSNR of the uniformly sampled foci within the 3.2 mm × 3.2 mm design area, designed with the FFM and PSO, respectively. e, Imaging resolution calibration on a USAF (the United States Air Force) resolution chart. Scale bar, 1 mm. prop., propagation; iter, iteration.
